WBC-VIII-Vol.4 – Resources – Forestry, Plantations and ... - BambuSC

Table 2. Change of density and occupied area (%) of tree crown in P. bambusoides riparian
forests along Echi River, Shiga prefecture, Japan. (comparison of 10 plots between 1961 and
1982 through aerial photograph) (from Yoshida et al. 1991)
Plot Distance from Crown density Occupied area of
mouth of river Tree crown
(size) (km) (no./ha) (%)
1961 to 1982 1961 to 1982
A1(200m×200m) 2.1 0.50 to 2.25 3.51 to 12.06
A2(200m×200m) 2.4 1.00 to 2.00 6.78 to 8.78
A3(100m×400m) 2.9 4.00 to 8.50 16.47 to 34.60
A4(100m×400m) 3.3 3.50 to 6.25 14.34 to 17.45
A5(100m×400m) 4.0 1.50 to 2.50 4.64 to 8.00
A6(100m×400m) 4.8 3.00 to 4.50 8.19 to 15.45
A7(100m×400m) 5.7 2.00 to 4.25 2.82 to 11.45
A8(100m×400m) 7.5 2.00 to 5.50 3.55 to 7.39
A9(100m×400m) 8.1 4.75 to 17.75 10.10 to 40.48
A10(100m×200m) 8.4 3.50 to 10.50 6.44 to 19.56
Average 2.53 to 6.18 7.75 to 17.53
VIII World Bamboo Congress Proceedings Vol 4-144